#include <bits/stdc++.h>
using namespace std;
const int N = 100005;
int n, cnt[N], mx;
signed main() {
	freopen("duel.in", "r", stdin);
	freopen("duel.out", "w", stdout);
	scanf("%d", &n);
	for (int i = 1, a; i <= n; i++)
		scanf("%d", &a), mx = max(mx, ++cnt[a]);
	printf("%d\n", mx);
	return 0;
}